Cytogenetic, histopathologic, and immunologic studies of multifocal renal cell carcinoma.

Abstract:

BACKGROUND:Multifocal tumor areas occurred in 12-22% of patients with renal cell carcinoma. It is unknown whether these tumors have malignant potential and characterize a higher risk for metastases. The performance of nephron-sparing surgery in patients with low grade or low stage tumors is controversial. METHODS:Primary and secondary tumors were analyzed by conventional cytogenetics and fluorescence in situ hybridization. Production of interleukin (IL)-6, IL-10, IL-11, and transforming growth factor (TGF)-beta1 were determined using standard enzyme-linked immunosorbent assay and bioassays. RESULTS:In 15.2% of the renal cell carcinoma cases evaluated, multifocal tumors were detected. Cytogenetics revealed a concordance of primary and secondary tumors in 9 of 14 cases (64%). In 11 of 12 multifocal tumors (94%), the same immunologic activity status was observed in both primary and secondary tumors. CONCLUSIONS:Secondary tumors must be expected to have malignant potential similar to that of the primary tumors. This was underscored by the high concordance of cytogenetic, histopathologic, and immunologic data in this study.

journal_name

Cancer

journal_title

Cancer

authors

Junker K,Schlichter A,Junker U,Knöfel B,Kosmehl H,Schubert J,Claussen U

subject

Has Abstract

pub_date

1997-03-01 00:00:00

pages

975-81

issue

5

eissn

0008-543X

issn

1097-0142

pii

10.1002/(SICI)1097-0142(19970301)79:5<975::AID-CNC

journal_volume

79

pub_type

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